pipeline {
    agent {
	docker { 
		image 'ubuntu:latest'
	}
	}
    parameters{
        buildSelector(
            defaultSelector: lastSuccessful(),
            name: 'BUILD_SELECTOR',
            description: 'Which build to use for copying artifacts'
        )
    }
    stages {
        stage("Script") {
            steps {
                sh "ls -al"
		sh "pwd"
            }
        }
    }
}